Solution is simple, Black people will have to vote at 16, Asians will have to wait until they are 24.3, Natives 18.4, Hispanics 23 and last but not least White people at 19.6. Unless they are woman of course, then they have to wait an extra 6 years. Religious people an extra 6.48 years. When they get married people don't get to vote for 2.4 years.

For example, a married Asian Buddist woman 24.3+6+6.48+2.4 = 39.18 is the corrected for inflation voting age.

We can further refine the formula to account for the expectancy per region, get some of that creative gerrymandering going on. Should be fun!